Cistern-mold.



Nn. 668,291. Patented Feb. x9, lem. c., J. A. a. s. n. Hummm.

CISTEBN MULD.

Application led Dec. 1.4 1900.1

2 Sheets-Sheet 2.

(lo Model.)

Jhimzys Wigzsses v Sans nrnr trios.

OYRUs HUMMON, YJOHN A. HUMMON, AND BYRON D. HUMMON, OF Lnnrsio,

. OHIO.

ClSTERN-IVIOLD.

SPECIFICATION forming part of Letters Patent No. 668,291, dated February19, 1901.

Application iiled December 14,1900 Serial No. 39,896. (No model.)

To all whom it may concern:

Beit known that we, CYRUs HUMMON, JOHN A. HUMMON, and BYRON D. HUMMON,citizens of the United States, residing at Leipsic, in the county ofPutnam and State of Ohio, have invented a new and useful Cistern-Mold,of which the following is a specification.

Our invention is an improved mold for shaping the inner sides ofcisterns formed of grouting or other plastic material; and it consistsin the peculiar construction and combination of devices hereinafterfully set forth and claimed. n

The object of our invention is to provide an improved mold which isconstructed Of separable parts and which is adapted, after the cisternhas been constructed and the Inaterial composing the iioor, roof, andsides thereof has set and become hardened, to-be removed from theinterior of the cistern.

In the accompanying drawings, Figure l is a sectional perspective viewlof a cistern in process of construction on one of ourimproved molds.Fig. 2 is a perspective view of a mold constructed in accordance withour invention with parts removed to disclose the interior constructionthereof. Fig. 3 is a detail sectional view taken through the neck of themold. Figs. 4 and 5 are detail views. Fig. is a vertical transversesection of the lower portion of one of the side walls of the mold.

Our improved mold comprises side and end boards l 2, respectively, sideand end studs 3 4, respectively, braces 5 6 between said studs, near thelower ends thereof, braces 7 S between said studs, near the upper endsthereof, arch-boards 9 l0, supported on said studs 3, and the upper endboards and roof-boards ll, which connect said arch-boards together.

In the construction of a cistern by the use of our improved mold anexcavation of suitable length, breadth, and depth is made in the soil.The bottom Of the excavation is then covered with grouting composed ofsand, cement, and gravel mixed with water to the proper consistency andthe same is tamped and forms the bottom of the cistern, the same beingof any suitable thickness. On the door or bottom of the cistern thusconstructed, when the same is sufficiently set, we then dispose a pairof our side boards l at suitable distances from the sides of theexcavation, usually at a distance of about four inches therefrom, and apair of end boards 2 at the same distance from the ends of theexcavafion, the said end boards 2 connecting the side boards l togetherand at their ends bearing against the outer sides of cleats l2, whichare secured on the side boards l at a distance from the ends of saidside boards equal to the thickness of said end boards. The space thusformed between said side and end boards and the sides and ends of theexcavation is filled with the grouting and the same is tamped. Beforetampiug we place the end studs 4 in a vertical position with their lowerportions` bearing against the inner sides of the end boards 2, at thecenters thereof, and the side studs 3 in a vertical position with theirlower portions bearing against the inner sides of the side boards l, atthe centers thereof. Said side studs are connected together by abrace-board 6 and said end studs 4 are connected together by abrace-board 5, the same serving to prevent the side and end boards fromspringing inward. Each of the studs 3 4 is provided on its inner sidenear its lower end with a cleat l5. The same has a vertical slot ormortise 14, which is open at its upper end. The ends of the braces 5 6are inserted in said mortises,

and the said braces have their ends beveled, as shown in detail in Fig.4, so that keys or wedges l5 may be inserted in said mortises 14 betweensaid beveled ends of said braces and the insides of said studs. Anotherpair of side boards are then placed onthe lowermost side board, and endboards are placed on the lowermost end boards, and the spaces thusformed between the mold and the sides and en ds of the excavation arefilled with grouting, tamped as before, and this process is continueduntil the mold and the sides of the cistern have reached the requiredheight. The studs 3 and 4 are provided on their inner sides at theirupper ends with cleats 16, which are substantially identical with thecleats 13, hereinbefore described, and the brace-boards 7 8, whichconnect the upper portions of said studs 3 4, respectively, together,have their ends secured in the mortises formed in said cleats 16 andkeyed therein.

The upper side boards 1 are provided on their inner sides at` suitabledistances apart with cleats 17. The upper ends of said cleats and theupper ends of the cleated studs 3 are beveled, as shown in Fig. 2 and indetail in Fig. 5, and on the said beveled upper ends of said cleats 17and said studs 3 are placed keys or wedges 18. The same supporttransverselydisposed arch-boards 9, the ends of which bear against theinner sides of the upper side boards 1. The upper end boards 2 areslightly narrower than the other end boards and support end arch boards10, Said end archboards 10 bear against the outer sides of the upperportions of the end studs 4, and the intermediate arch-boards 9 areprovided with central rabbets 19 on their lower sides, which engagebrace-boards 7. Longitudinally-disposed roof-boards 11 are then placedon and connect the arch boards 9 10. Said roofboards, in connection withsaid arch-boards,

` form a frame on which an arched roof for the cistern may beconstructed of grouting. An opening 20, to form an entrance to thecistern, is formed in the boards 11 on the center of the arched frame,and the inner and the outer sides of the neck of the cistern are 'formedby molds 21 22. rlhe inner mold 21 for the neck of the cistern iscomposed of side boards 23, having cleats 24 on the inner sides neartheir ends, and end boards 25,which connect-.said side boards togetherand bear against the outer sides of said cleats. The outer mold 22,which fashions the outer side of the neck of the cistern, is composed ofseparable side boards 28, having cleats at their ends on their innersides, and end boards r26, which connect the ends of said side boardstogether and bear against the inner sides of said cleats. Tie-bolts 29connect the side boards together and have cleats 30 at their ends, whichbear on the outer sides of said side boards. When the grouting whichforms the floor, sides, roof, and neck of the cistern has set andbecomes sufficiently hardened, the mold is then removed from theinterior of the cistern, the parts thereof being separable, so that thesame may be readily disassembled and the keys 15 18 greatly facilitatingthe disassembling of the parts. The inner and outer neck-molds are thenremoved. The interior of the cistern is plastered with cement or othersuitable material. Earth is filled in over the roof of the cistern tothe level of the surrou nding'ground, and the cistern is then complete.

Each of the side boards 1 may be a single board; but where it isdesirable to enable cisterns of diiferent sizes to be constructed on thesaine mold said side boards may each compose one or more sections. Inthe drawings, Figs. 1 and 2, we show each of the side boards 1 ascomposed of two separable sections 1a, which meet on the outer sidesofthe side studs 3, the latter covering the joint between the saidsections. The meeting ends of the sections 1a are preferably beveled tofacilitate the assembling and disassembling thereof. The ends of theside boards 1 are' preferably rounded on their outer sides, as indicatedin the drawings. It will be understood that the height of the mold maybe varied by varying the 'number of side and end boards used.

To facilitate the disassembling of the parts of the side and end wallsof the mold after the parts of the roof thereof have been disassembled,We bevel the lowermost side boards 1 outwardly on their upper sides, asat 1b, Figs. 2 and 6, bevel the upper and lower sides of the second sideboards from the bottom outwardly, as at 1c, and correspondingly bevelthe lower sides of the third side boards from the bottom, as at 1d, andin disassembling the side and end walls of the mold the second sideboards from the bottom are removed first, the beveled upper and lowersides thereof coacting with the correspondingly-beveled adjacent boardsto facilitate the removal of the said second side boards, which wouldotherwise be extremely difficult, the subsequent removal of the otherside boards and of the end boards being easily effected.

Having thus described our invention, we claiml. A cistern-mold forshaping the in ner sides of cisterns and the like, and having side andend boards separable from each other, studs on the inner sides thereofand separable therefrom and braces connecting said studs, substantiallyas described.

2. Acistern-mold forshaping theinnersides of cisterns and the like, andhaving side andv end boards separable from each other, studs on theinner sides thereof and separable therefrom, braces connecting saidstuds, said studs hav-ing mortises on their inner sides to receive theends of said braces and keys between said studs and the ends of saidbraces, substantially as described.

3. A cistern-mold having side and end walls, cleats on the inner sidesof said side walls near the upper sides thereof, arch-boards supportedon said cleats and wedge-shaped keys inserted between said arch-boardsand said cleats, substantially as described.

4. In a cistern-mold, the combination of side boards having cleats ontheir innersides; end boards connecting said side boards and bearingagainst the outersides of said cleats; studs disposed against the innersides of said side and end boards and removable therefrom;longitudinally and transversely disposed braceboards connecting said endand side studs respectively; arch-boards on the upper end IOO boards andbearing against the outer sides of our own We have hereto aixed oursignatures 1o the end studs at the upper ends thereof; interm ediatearch-boards having their' ends supported on cleat-s on the inner sidesof the uppei1 side boards and roof-boards disposed on said arch-boardsthe Whole being adapted to be readily assembled and disassembled,substantially as described.

In testimony that We claim the foregoing as in the presence of twoWitnesses.

CYRUS HUMMON. JOHN A. HUMMON. BYRON D. HUMMON.

Witnesses:

HENRY C. RUHL, BENJAMIN B. BRUMLEY.

